Description : The most suitable equipment for the transportation of 200 mesh size particles is a (A) Bucket elevator (B) Pneumatic conveyor (C) Screw conveyor (D) Belt conveyor
Last Answer : (B) Pneumatic conveyor
Description : For transporting pasty material, one will use a/an (A) Apron conveyor (B) Belt conveyor (C) Screw conveyor (D) Bucket elevator
Last Answer : (C) Screw conveyor
Description : Which of the following mechanical conveyors does not come under the division ‘carriers’? (A) Belt conveyor (B) Bucket elevator (C) Screw conveyor
Description : Vertical transportation of materials can be done by a/an (A) Apron conveyor (B) Pneumatic conveyor (C) Bucket elevator (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : __________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials. (A) Bucket (B) Belt (C) Screw (D) Apron
Last Answer : (B) Belt
Description : Dry powdery solid materials are transported by a __________ conveyor. (A) Belt (B) Bucket (C) Screw (D) None of these
Last Answer : (C) Screw
Description : Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of ‘scrappers’? (A) Bucket conveyor (B) Flight conveyor (C) Screw conveyor (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Write About Screw Conveyor And Bucket Conveyors?
Last Answer : In screw conveyor, an endless helicoids screw is fitted to the shaft. On one end of the shaft, the driving mechanism is fitted and the other end of the shaft is supported on a ball bearing. While ... as vertical lifts. The coal is loaded at the bottom and unloaded at the top in the bucket conveyors.
Description : Gummy & sticky materials like molasses, sugar etc. are besttransported/handled by using a __________ conveyor. (A) Drag (B) Ribbon (C) Screw (D) Slat
Last Answer : (B) Ribbon
Description : Limestone addition in the blast furnace is done to flux __________ present in the raw materials. (A) SiO2 (B) Al2O3 (C) MnO2 (D) P
Last Answer : Limestone addition in the blast furnace is done to flux __________ present in the raw materials. (A) SiO2 (B) Al2O3 (C) MnO2 (D) P
Description : __________ conveyor is the most suitable for short distance transportation of non-abrasive loose materials like garbage, grain, food wastes etc. (A) Flight (B) Screw (C) Drag (D) Belt
Last Answer : (A) Flight
Description : Which of the following materials is used along with iron ore and limestone to produce iron in a modern blast furnace? w) coke x) cementite y) coal z) bauxite
Last Answer : ANSWER: W -- COKE
Description : Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor. (A) Flight (B) Slat or drag (C) Ribbon (D) Screw
Last Answer : (D) Screw
Description : Dust content in raw blast furnace gas is about __________ gm/Nm3 ; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use. (A) 15-30 (B) 1-2 (C) 70-100 (D) 150-200
Last Answer : (A) 15-30
Description : Pick out the wrong statement. (A) Dry process is used for the manufacture of cement, when the raw material is blast furnace slag (B) Portland cement is made employing wet process (C) Gypsum is added to Portland cement to lengthen its setting time (D) None of these
Last Answer : (D) None of these
Description : Which of the following mechanical conveyors does not come under the division ‘scrapers’? (A) Ribbon conveyor (B) Flight conveyor (C) Bucket elevators (D) Drag conveyor
Last Answer : (C) Bucket elevators
Description : For the transportation of ultrafine particles, the equipment used is a __________ conveyor. (A) Belt (B) Pneumatic (C) Screw (D) None of these
Last Answer : (B) Pneumatic
Description : Which is the most suitable conveyor for transportation of sticky material? (A) Apron conveyor (B) Belt conveyor (C) Screw conveyor (D) Pneumatic conveyo
Description : is not well register, there is unbalance load, uneven harvesting and exclusive clogging of crops on the knife A) Vertical conveyor reaper B) MOVER C) Reaper binder D) Potato digger elevator.
Last Answer : MOVER
Description : Describe working of screw conveyor with neat sketch.
Last Answer : 1. A Screw conveyor consist of a continuous or broken blade helix or screw fastened to the shaft (or a pipe) 2. This helix or screw rotates in trough so that revolving screw advances the material. 3. ... divided solids or pasty solids. 4. This conveyor can also be used as mixture or blender.
Description : Petroleum coke is used mainly in the (A) Discoloration of yellow glycerine (B) Sugar refining (C) Manufacture of carbon electrode (D) Blast furnace for reduction of iron ore
Last Answer : (C) Manufacture of carbon electrode
Description : The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon. (A) 0.2 (B) 2 (C) 4 (D) 8
Last Answer : (C) 4
Description : __________ atmosphere is maintained inside an iron blast furnace. (A) Oxidising (B) Reducing (C) Inert (D) Decarburising
Last Answer : (B) Reducing
Description : Yield of blast furnace gas is about __________ Nm3 /ton of pig iron. (A) 300 (B) 2000 (C) 5000 (D) 10000
Last Answer : (B) 2000
Description : Main use of hard coke produced by high temperature carbonisation is in the (A) Iron blast furnace (B) Cupola in foundries (C) Sinter making (D) Domestic ovens
Last Answer : (A) Iron blast furnace
Description : __________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace. (A) Bauxite (B) Limestone (C) Quartz (D) Manganese
Last Answer : (B) Limestone
Description : Which is the main reducing agent during production of iron from iron ore in a blast furnace? (A) C (B) CO (C) CO2 (D) H2
Last Answer : (B) CO
Description : The main charge in blast furnace is usually (A) Iron ore & coke (B) Iron ore, coke & air (C) Limestone, coke & iron ore (D) Limestone, sand & iron ore
Last Answer : Limestone, coke & iron ore
Description : Which of the following contributes maximum as main source of sulphur in the blast furnace charge? (A) Sinter (B) Coke (C) Iron ore (D) Limestone
Last Answer : Coke
Description : Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag. (A) 2 (B) 3 (C) 0.8 (D) 6
Last Answer : (B) 3
Description : Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity
Last Answer : Option A
Description : Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight (A) 1.5 (B) 3 (C) 5
Last Answer : Option B
Description : The main reducing agent in iron blast furnace is(A) Carbon dioxide (B) Carbon monoxide (C) Oxygen (D) Air
Description : Pick out the wrong statement. (A) Cold cracking of a weld is due to the presence of hydrogen gas in the weld (B) True stress is given by, σ = σE (1 + εE), where σE and εE ... in the iron blast furnace (D) High residual stress at the surface is beneficial for fatigue properties of a material
Last Answer : Option C
Description : Hot, lumpy & abrasive materials are best transported by using a/an __________ conveyor. (A) Apron (B) Belt
Last Answer : (A) Apron
Description : During the extraction of iron in the blast furnace ,
Last Answer : During the extraction of iron in the blast furnace , A. Coke acts as reducing agent in the lower ... and Coke acts as reducing agent in the upper zone
Description : In the metallurgy of iron, when limestone is added to the blast furnace,the calcium ions end up in
Last Answer : In the metallurgy of iron, when limestone is added to the blast furnace,the calcium ions end up ... B. Gangue C. Metallic calcium D. Calcium Carbonate
Description : Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide .
Last Answer : Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide . A. C B. CO C. `CO_(2)` D. `CaCO_(3)`
Description : In the extraction of iron in the blast furnace, the reducing agent for the ore is
Last Answer : In the extraction of iron in the blast furnace, the reducing agent for the ore is A. Carbon monoxide B. Carbon dioxide C. Carbon D. Silica
Description : The main reactions occuring in blast furnace during extraction of iron from haematite ore…..
Last Answer : The main reactions occuring in blast furnace during extraction of iron from haematite ore .. A. `Fe_(2)O_ ... 3Cto2Fe+3CO` D. `CaO+SiO_(2)toCaSiO_(2)`
Description : The flux used in the extraction of iron from Haematite in te blast furnace is `"["EAM(ENG)2014"]"`
Last Answer : The flux used in the extraction of iron from Haematite in te blast furnace is `"["EAM(ENG)2014"]"` A. Lime stone B. Silica C. Coke D. CO
Description : The iron formed in blast furnace is calle d
Last Answer : The iron formed in blast furnace is calle d A. Pig iron B. Wrought iron C. Steel D. Cast iron
Description : The slag formed in the blast furnace during the extraction of iron from haematite is
Last Answer : The slag formed in the blast furnace during the extraction of iron from haematite is A. `Ca_(3)(PO_(4))_(2)` ... (3)` C. `FeSiO_(3)` D. `MnSiO_(3)`
Description : A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. This is known as
Last Answer : A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. ... Smelting B. Calcination C. Roasting D. Liquition
Description : The iron obtained direct from the blast furnace is called?
Last Answer : Pig iron
Description : The blast furnace gas is a byproduct in the production of pig iron in the blast furnace. A. Yes B. No
Last Answer : Answer: A
Description : Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by (A) Biological oxygen pond (B) Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) (C) Lagoons (D) Filtration
Last Answer : (B) Radial settling tank (thickener) using coagulant (lime & ferrous sulphate)
Description : Which of the following conveyors cannot be recommended for transportation of abrasive materials? (A) Belt conveyor (B) Apron conveyor (C) Flight conveyor (D) Chain conveyor
Last Answer : (C) Flight conveyor
Description : Handling of ashes and similar materials can be done best by a __________ conveyor. (A) Flight (B) Drag or slat (C) Belt (D) Ribbon
Last Answer : (B) Drag or slat
Description : A belt conveyor used for the transportation of materials can (A) Run upto 1 km (B) Travel at a speed upto 300 metres/minute (C) Handle materials upto 5000 tons/hr (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)